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Passive Measurement of Viscoelastic Properties of the Healthy Red Blood Cell by Optical Tweezers
, M.Sc. Thesis Sharif University of Technology ; Seyyed Reihani, Nader (Supervisor)
Abstract
Blood is one of the most important biological organs. Red blood cell (RBC), as the most abundant cell of blood, plays an important role at life of the living bodies. Unique mechanical properties of RBCs enable them to pass through very narrow vessels. Any abnormality in these mechanical properties will disorder the function of the cell and many diseases affect these properties too. Studying the mechanical properties of RBCs is very importantin that it could result in a disease diagnostic method in a single-cell level. In this thesis we have tried to measure the viscoelastic properties of a single RBC by an optical trap through a passive method. This measurement is made through studying the...
On the free vibration response of rectangular plates, partially supported on elastic foundation
, Article Applied Mathematical Modelling ; Volume 36, Issue 9 , September , 2012 , Pages 4473-4482 ; 0307904X (ISSN) ; Mofid, M ; Akin, J. E ; Sharif University of Technology
2012
Abstract
Rectangular plates on distributed elastic foundations are widely employed in footings and raft foundations of variety of structures. In particular, mounted columns and single footings may partially occupy the rectangular plate of any kind. This study deals with free vibration problem of thin rectangular plates on Winkler and Pasternak elastic foundation model which is distributed over a particular arbitrary area of the plate. Closed form solutions are developed through solving the governing differential equations of plates. Moreover, a novel mathematical approach is proposed to find the exact analytical solution of free vibration of plates with mixed or fully-clamped boundary conditions....
Exact solution to free vibration of beams partially supported by an elastic foundation
, Article Scientia Iranica ; Volume 18, Issue 4 A , 2011 , Pages 861-866 ; 10263098 (ISSN) ; Mofid, M ; Alanjari, P ; Sharif University of Technology
2011
Abstract
This study pertains to the free vibration problem of beams on an elastic foundation of the Winkler type, which is distributed over a particular length of the beam. Closed form solutions are developed by solving the governing differential equations of beams. Moreover, an innovative mathematical approach is proposed to find the precise analytical solution of the free vibration of beams with mixed boundary conditions. Results are discussed in detail through verification studies. Ultimately, it was concluded that the proposed mathematical method could successfully obtain the exact solution to the free vibration problem of beams on partial elastic foundations under mixed boundary conditions